Test your colour vision
Not everyone sees colour the same way. Take a look at the tests below – what do you see?
‘Colour blindness’ causes people to see colour differently. It isn’t actually a type of blindness –most people who are colour blind still see in colour, but certain colour signals are sent to the brain differently.
Colour blindness is usually genetic, so it is inherited from your parents. It affects approximately 1 in 12 men and 1 in 200 women.
There are different types of colour blindness, but most colourblind people are unable to fully perceive red, green or blue light. Often, the difference is so mild that many people with colour blindness don’t know they have it.
Do you have colour blindness? The tests below can help you find out.
Steps
Look closely at each image and take a note of what you observe.
Image 1:
Image 2:
Image 3:
Image 4:
Image 5:
What did you see?
Image 1: Everyone should see the number 12.
Image 2: Most people will see the number 6. People with a red-green vision deficiency won't see a number.
Image 3: Most people will see the number 74. People with red-green vision deficiency will see the number 21.
Image 4: Most people will not see a number. People with red-green vision deficiency will see the number 2.
Image 5: Most people will see number 42. People who do not perceive red light will see the number 2, while those unable to perceive green light will see the number 4.